Rated 5 out of 5 stars

per johnath el mai. 30, 2008 ·

Like Firebug for web developers, this extension is a must-have for anyone working on extensions, and is actually pretty useful for web devs as well, really. Not for casual users, but a necessary tool for power users.

This review is for a previous version of the add-on (0.3.0.20080526).